import { getCurrentInstance } from "vue"

export default class DateTimeUtils {
	public static parseTime(time: number | string, pattern?: string) {
		if (arguments.length === 0 || !time) {
			return null
		}
		const { proxy } = getCurrentInstance()
		const now = new Date().getTime()
		const format = pattern || '{y}-{m}-{d} {h}:{i}:{s}'
		let date
		if (typeof time === 'object') {
			date = time
		} else {
			if ((typeof time === 'string') && (/^[0-9]+$/.test(time))) {
				time = parseInt(time)
			} else if (typeof time === 'string') {
				time = time.replace(new RegExp(/-/gm), '/').replace('T', ' ').replace(new RegExp(/\.[\d]{3}/gm), '');
			}
			if ((typeof time === 'number') && (time.toString().length === 10)) {
				time = time * 1000
			}
			date = new Date(time)
		}
		const formatObj = {
			y: date.getFullYear(),
			m: date.getMonth() + 1,
			d: date.getDate(),
			h: date.getHours(),
			i: date.getMinutes(),
			s: date.getSeconds(),
			a: date.getDay()
		}
		const s = (now - date.getTime()) / 1000
		if(s < 3600){
			return proxy.$t('common.time.minute').replace('{sum}', Math.floor(s / 60))
		}else if(s < 3600 * 24){
			return proxy.$t('common.time.hour').replace('{sum}', Math.floor(s / 60 / 60))
		}else if(s < 3600 * 24 * 3){
			return proxy.$t('common.time.day').replace('{sum}', Math.floor(s / 60 / 60 / 24))
		}
		const time_str = format.replace(/{(y|m|d|h|i|s|a)+}/g, (result, key) => {
			let value = formatObj[key]
			if (key === 'a') { return ['日', '一', '二', '三', '四', '五', '六'][value] }
			if (result.length > 0 && value < 10) {
				value = '0' + value
			}
			return value || 0
		})
		if(new Date().getFullYear() === date.getFullYear()){
			return time_str.split(" ")[1]
		}
		return time_str
	}
}